Cordiera triflora A.Rich.

Delprete, Piero G. & Persson, Claes, 2012, Octavia sessiliflora DC. and Mussaenda glomerulata Lam. ex Poir., two obscure taxa from French Guiana synonymous with members of the Alibertia group (Rubiaceae, Gardenieae), Adansonia (3) 34 (2), pp. 353-363 : 360-362

Cordiera triflora A.Rich.

( Figs 3 ; 4 )

In DC., Prodromus 4: 445 (IX.1830) (reimpr. Mémoire sur la famille des Rubiacées 223: pl. 20, fig. 2 [XII.1830]; reimpr. Mémoires de la Societé d’Histoire naturelle de Paris, series 3, 5: 223, pl. 20, fig. 2 [1834]). — Alibertia triflora (A.Rich.) K.Schum. in Mart. et al., Flora Brasiliensis 6 (6): 392 (1889). — Cordiera trifolia Steud. , orth. var., Nomenclator Botanicus, 2nd ed., 1: 419 (1840).

— Type: French Guiana, Kourou R., L.C.M. Richard s.n. (lecto-, P [ P03821428 ], selected by Persson & Delprete in Delprete [2010] ; iso-, F, K).

Octavia sessiliflora DC. , Prodromus 4: 464 (1830). — Nonatelia sessiliflora (DC.) Kuntze, Revisio Generum Plantarum 1: 290 (1891).

— Type: French Guiana, without locality, s.d. [1781-1785], Patris s.n. (lecto-, G-DC [sheet 3], here designated ; isolecto-, G-DC [sheets 1; 2]).

Alibertia tenuifolia K. Krause , Verhandlungen des Botanischen Vereins der Provinz Brandenburg 50: 106 (1908).

— Type: Brazil, “Amazonas” (Acre), Rio Juruá Miry (Rio Jurua Mirim), IX.1901, male fl., Ule 5843 (holo-, B, destroyed ; lecto-, MG, here designated ; isolecto-, G [2], HBG, K, L; photo-B at F, GH, MO, NY, RB).

Alibertia steinbachii Standl. , Publications of the Field Columbian Museum , Botanical Series 4: 287 (1929).

— Type: Bolivia, Santa Cruz, Prov. Sara, Buenavista, 9.X.1924, male fl., Steinbach 6597 (holo-, F 573427 ; iso-, A, BM, G, GH, MO, NY, S).

Alibertia benensis Standl., Publications of the Field Columbian Museum, Botanical Series 7: 291 (1931).

— Type: Bolivia, Beni, San José, between Trinidad and Santa Cruz , IX.1926, male fl., Wendermann 2580 (holo-, B, destroyed ; lecto-, S, here designated ; isolecto-, LPB, MO, frag-B at F, frag-S at F).

SPECIMENS EXAMINED. — Venezuela. Terretorio Federal Amazonas, Cerro de La Neblina, along Río Mawarinuma, upstream from Neblina Base Camp, 0°50’N, 66°10’W, 140 m, 2.V.1984, fr., Stein et al. 1709 (MO, VEN).

Guyana. Upper Takatu-Upper Essequibo Region, SE Kanuku Mts, Mt Ishtaban, 3°15’N, 59°25’W, 300-500 m, 26.VI.1989, fr., Gillespie et al. 1876 (MO, NY, US). — Potaro-Siparuni Region, 6.5 km NE of Suruma village, 4°10’N, 59°01’W, 400 m, 3.V.1992, imm. fr., Hoffman et al. 1563 (CAY, MO, NY, US).

Surinam. Goudkreek, Corantyn, 17.X.1916, Stahel & Gonggrijp BW 3585 (L).

French Guiana. Lower Oyapock River, NE face Piton Rocheux, Haut de Crique Armontabo, 300-350 m, 22.II.1981, Cremers 7079 (CAY[2], NY, UB). — Kourou, s.d., Richard s.n. (F [ex P], P n.v., photo-P at A[2]).

Ecuador. Morona-Santiago, Cordillera Cutucú, 2°40’S, 78°W, c. 1000 m, 17.XI-5.XII.1944, male fl., Camp 1072 (NY[2], US).

Peru. Amazonas, mouth of Río Santiago, 160 m, XI.1924, fl., Tessmann 4443 (NY, frag-B at F). — Junín, Rondayacu, 35 km S of San Ramón in Tulumayo valley, 1850 m, 5.VI.1983, fr., Gentry et al. 41480 (GB, MO, USM). — Loreto, above Pongo de Manseriche , Left bank of Río Santiago , 200 m, 4.XII.1931, male fl., Mexia 6210 (BM, CAS, F, G [2], GB[2], GH, MO, NY, S, UC, US).

Brazil. Amapá, Mun. Calçoene, BR- 156 in vicinity of goverment rd camp Carnot, 53-72 km WNW of Calçoene, 2°33’-38’N, 51°16’W, 11.XII.1984, fr., Rabelo et al. 2972 (NY, US). — Amazonas, Mun.Humaitá, near Livramento on Rio Livramento, 12.X-6.XI.1934, imm.fr., Krukoff 6993 (A, BM, F, K, MO, NY, S, US; frag at F). — Mato Grosso, Sto. Antonio do Leverger, Engenho Velho, 24.III.1983, male fl., Carreira et al. 655 (NY). — Tocantins, Mun. Palmeiras de Tocantins, rd to Rio Curiacaca from BR-153, 6°38’S, 47°33’W, 200 m, 12.I.2008, fr., Silva & Moreira 12551 (CEN, UFG).

Bolivia. Beni, Iténez, Magdalena, 4 km W, 10.XI.1993, fl.-fr., Moraes et al.1720 (GB, LPB). — Santa Cruz, Ichilo, 1.2 km S of Buena Vista, 17°29’S, 63°39’W, c. 350 m, 9.X.1996, fem. fl., Persson & Gustafsson 302 (GB, NY, S), male fl., 303 (GB, LPB, S). — Prov. Sara, Buenavista, 500 m, 14.XII.1920, Steinbach 5219 (GH, NY, frag-B at F).

DISTRIBUTION AND ECOLOGY

Occurring in tropical South America, primarily at the region bordering the Amazon Basin ( circum-Amazonian distribution), in Venezuela, the Guianas , Brazil (from Amapá through Tocantins, Mato Grosso and Mato Grosso do Sul), and along the western slopes of the Andes in Peru and Bolivia. It grows in undercanopy of forests, thickets and at forest margins, both on terra firme and on sandy alluvial soil, from 200 to 2000 m altitude.

Figures

FIG. 3. — Octavia sessiliflora DC. (= Cordiera triflora A.Rich. in DC.): A, cross section of the fruits, showing eight “chambers” (false septa); B, fruit seen from the top, showing disk and permanent calyx; C, seeds; D, detail of one seed longitudinally cut, showing parts of the exotesta. Material references in Fig. 4.

FIG. 4. — Lectotype of Octavia sessiliflora DC. (= Cordiera triflora A.Rich. in DC.), preserved at the Candolle Herbarium (G-DC, G00310467, Sheet N. 3).